4-phenylbenzo[f]isoindole-1,3-dione

1-phenylnaphthalene-2,3-dicarboxylic acid

4-phenyl-3H-benzo[f][2]benzofuran-1-one

7-oxobenzo[c]fluorene-6-carboxylic acid

2-(4-methylphenyl)-4-phenylbenzo[f]isoindole-1,3-dione